What the heck were the names of those critters from Krypton with big TV sets on their heads which revealled what they were thinking?
Simply, "Thought-Beasts"...
Rhino-like but with miraculous "flat screen" heads, since there seemed to be no picture tubes..maybe plasma screens?
They might have been accused of limited thinking as the TV screens always projected images of them chomping on the torso of whoever they intended to attack...